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these gauges include a highly advanced 1/8" NPT Pressure Transducer and wiring harness for ease of installation
nitrous percentage or boost (Requires Davis Technologies Holley Module) Store and select between four calibrations with Multi Map Selector (Part Number 558-407) HARDWARE: ECU is fully potted and can be mounted in the engine compartment or interior – See images for dimensions Sealed automotive and marine grade connectors Optional 5
Product Specifications: Product Style: Filter Wrap - Round Straight Wrap Type: Precharger Colour: Black Material Used: Polyester Inside Diameter: 4
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HEI Advance Curve Kit MO72300 Product:Suits All GM HEI Distributors these gauges include a highlyHEI Advance Curve KitSuits All GM HEI Distributors MO72300 72300 Special design centerplate eliminates over centering of the centrifugal weights "Recurve" your distributor for full spark advance at the optimum RPM Three sets of advance springs allow you to adjust the rate of spark advance from quick, to super quick, to ultra quick Weights and centerplates precision stamped with smooth edges eliminate erratic timing Comes with complete installation
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